INTERNATIONAL JOURNAL OF COMPUTER INTEGRATED MANUFACTURING, vol. 15, no. 2, page. 178 - 192, 2002-03
EUROPEAN JOURNAL OF OPERATIONAL RESEARCH, vol. 136, no. 2, page. 383 - 402, 2002-01-16
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY, vol. 20, no. 8, page. 564 - 570, 2002-01